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arXiv · 0805.3327

CP Violation in B_s Mixing in the SUSY SU(5) GUT with Right-handed Neutrinos

Junji Hisano·Yasuhiro Shimizu
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Abstract

It is recently announced by the {\bf Ut}{\it fit} collaboration that the CP phase of the $B_s$ mixing amplitude, $ϕ_{B_s}$, deviates more than $3 σ$ from the standard-model prediction. In this paper we discuss how large correction to $ϕ_{B_s}$ is possible in the supersymmetric SU(5) ground unified model (SUSY SU(5) GUT) with right-handed neutrinos. Here, we assume the supergravity-like boundary condition for the SUSY-breaking terms. We found that the 95% probability region derived by the {\bf Ut}{\it fit} collaboration is marginal in this model.

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Junji Hisano, Yasuhiro Shimizu. 2008-10-06. CP Violation in B_s Mixing in the SUSY SU(5) GUT with Right-handed Neutrinos. https://doi.org/10.1016/j.physletb.2008.10.011

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